Granted Patent
Utility
US 6,212,293 · App. 09/103,815
Image reading device
Inventor:
Yasuhiro Yamamoto
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Jun 24, 1998
Inventor
Yasuhiro Yamamoto
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.